Home / 859,015.44-1,287,954.45-409,805.64

Finding the Fourth Proportional to 859,015.44, 1,287,954.45 and 409,805.64

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Solution

The fourth proportional to 859,015.44, 1,287,954.45 and 409,805.64 is: 614,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,015.44 : 1,287,954.45 = 409,805.64 : x
  2. Step 2: Convert to fraction form
    859,015.44/1,287,954.45 = 409,805.64/x
  3. Step 3: Cross multiply
    859,015.44x = 1,287,954.45 × 409,805.64
  4. Step 4: Simplify right side
    859,015.44x = 527,810,997,673.10
  5. Step 5: Solve for x
    x = 527,810,997,673.10/859,015.44
  6. Step 6: Final answer
    x = 614,437.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.